mfs mount

客戶端相關的操作：

 2016-07-27 11:49:02 umount /usr/local/img.happytoo.cn

 2016-07-27 11:49:08 /usr/local/mfs/bin/mfsmount /usr/local/img.happytoo.cn -H 10.0.0.79  -o nonempty

/usr/local/mfs/bin/mfsmount /usr/local/img.happytoo.cn -H 10.0.0.79  -o nonempty

mfs查看文件的份數：

[root@V152_sshl_pay ~]# /usr/local/mfs/bin/mfsfileinfo /usr/local/img.happytoo.cn/1407101359362913.jpg

/usr/local/img.happytoo.cn/1407101359362913.jpg:

        chunk 0: 00000000000009B9_00000001 / (id:2489 ver:1)

                copy 1: 10.0.0.105:9422

                copy 2: 10.0.0.109:9422

[root@V152_sshl_pay ~]# /usr/local/mfs/bin/mfsfileinfo /usr/local/img.happytoo.cn/upload/down/happytoo.3.2.19.apk 

/usr/local/img.happytoo.cn/upload/down/happytoo.3.2.19.apk:

        chunk 0: 00000000004DA06F_00000001 / (id:5087343 ver:1)

                copy 1: 10.0.0.105:9422

                copy 2: 10.0.0.109:9422

[root@V105_shhl_wei down]# /usr/local/mfs/bin/mfsgetgoal -h /usr/local/img.happytoo.cn/    //獲取文件備份信息

/usr/local/img.happytoo.cn/: 2                        //1表示沒有備份，只有一個文件，我們這里是2

# 查看設置的goal數

[root@V152_sshl_pay ~]# /usr/local/mfs/bin/mfsgetgoal  /usr/local/img.happytoo.cn/

/usr/local/img.happytoo.cn/: 2

You have new mail in /var/spool/mail/root

[root@V105_shhl_wei down]# /usr/local/mfs/bin/mfsdirinfo /usr/local/img.happytoo.cn/   //查看chunk信息

/usr/local/img.happytoo.cn/:

 inodes:                    5596103

  directories:               446545

  files:                    5149558

 chunks:                    5149519

 length:               255759933723

 size:                 478456327168

 realsize:             956912654336

 # /usr/local/mfs/bin/mfssetgoal -r 2 /mnt/data/                   //等段時間之后生效，這樣修改之后，文件就實現冗余功能了 -r 遞歸

[root@V152_sshl_pay ~]# /usr/local/mfs/bin/mfscheckfile /usr/local/img.happytoo.cn/upload/down/happytoo.3.2.19.apk mfscheckfile 用來檢查指定文件以多少副本來存儲

/usr/local/img.happytoo.cn/upload/down/happytoo.3.2.19.apk:

 chunks with 2 copies:            1

mfs 故障模擬維護：

http://www.xuebuyuan.com/1559864.html

 在web見面info選項卡中可以看出，這個矩陣橫坐標表示現在已經存在磁盤上的副本數，縱坐標表示你設置的副本數

http://www.bubuko.com/infodetail-1899169.html mfs如何遷移數據之替換存儲節點

MFS近期測試遇到故障的總結 http://www.xuebuyuan.com/1559864.html

http://www.bubuko.com/infodetail-1899169.html   遷移chunkserver 配置

http://www.bubuko.com/infodetail-1899169.html

http://www.cnblogs.com/liaojiafa/p/6069872.html